An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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Keplerian angular velocity
  تندای ِ زاویه‌ای ِ کپلری  
tondâ-ye zâviye-yi-ye Kepleri
Fr.: vitesse angulaire keplérienne  

The angular velocity of a point in a circular orbit around a central mass. It is given by:
ΩK = (GM/r3)1/2,
where G is the → gravitational constant, M is the mass of the gravitating object, and r is the radius of the orbit of the point around the object.

See also: → Keplerian; → angular; → velocity.